Mybatis 开启控制台打印sql语句

1:无论使用mybatis-plus还是mybatis,只要在springboot的配置文件----appcation.yml中添加:就可以答应sql

logging:
  level:
    org.jeecg.modules.hdx.mapper: debug

org.jeecg.modules.hdx.mapper为@mapper注解下面的类,或者继承BaseMapper,或者@MapperScan扫描包的类

2:如果使用的是springboot+mybatis-plus的话

#mybatis plus 设置
mybatis-plus:
  mapper-locations: classpath*:org/jeecg/modules/**/xml/*Mapper.xml
  global-config:
    # 关闭MP3.0自带的banner
    banner: false
    db-config:
      #主键类型  0:"数据库ID自增",1:"该类型为未设置主键类型", 2:"用户输入ID",3:"全局唯一ID (数字类型唯一ID)", 4:"全局唯一ID UUID",5:"字符串全局唯一ID (idWorker 的字符串表示)";
      id-type: 4
      # 默认数据库表下划线命名
      table-underline: true
  configuration:
    # 这个配置会将执行的sql打印出来,在开发或测试的时候可以用
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

2-1:在pom文件引入依赖

  <dependency>
       <groupId>com.baomidougroupId>
       <artifactId>mybatis-plus-boot-starterartifactId>
       <version>3.3.1version>
  dependency>

3:如果使用的是springboot+mybatis的话(包含分页)

#数据库的配置
spring:
 datasource:
  driver-class-name: com.mysql.cj.jdbc.Driver
  url: jdbc:mysql://localhost:3306/mytest?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
  username: root
  password: root
#mybatis的配置
mybatis:
 configuration:
#   sql日志显示,这里使用标准显示
  log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
#  数据库中如果有类似 如  user_name 等命名,会将 _后的字母大写,这里是为了和实体类对应
  map-underscore-to-camel-case: true
#  配置mapper文件的路径
 mapper-locations: classpath:org/jeecg/modules/hdx.mapper/*/mapper/*.xml
 #pageHelper配置分页(官网推荐配置)
pagehelper:
 helperDialect: mysql
 reasonable: true
 supportMethodsArguments: true
 params: count=countSql

3-1:pom配置(包含分页)

	
<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-webartifactId>
dependency>

<dependency>
    <groupId>org.mybatis.spring.bootgroupId>
    <artifactId>mybatis-spring-boot-starterartifactId>
    <version>2.0.1version>
dependency>

<dependency>
    <groupId>mysqlgroupId>
    <artifactId>mysql-connector-javaartifactId>
    <scope>runtimescope>
dependency>

<dependency>
    <groupId>org.projectlombokgroupId>
    <artifactId>lombokartifactId>
    <optional>trueoptional>
dependency>

<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-testartifactId>
    <scope>testscope>
dependency>
<!—pagehelper   mybatis的分页插件依赖-->
<dependency>
    <groupId>com.github.pagehelpergroupId>
    <artifactId>pagehelper-spring-boot-starterartifactId>
    <version>1.2.3version>
dependency>

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